BMW 7 Series: Removing And Installing/Replacing Oil Pump (N63)
Notes
IMPORTANT: All adjusting procedures on the chain drive must be observed.
A timing chain which is tensioned too tautly can cause noises in the chain drive.
A timing chain that is too slack can cause the timing chain to jump.
Risk of damage in oil pump drive.
Necessary preliminary work
- DRAIN ENGINE OIL.
- REMOVE UPPER OIL SUMP SECTION.
Unscrew nuts (2).
Tightening torque: 11 41 1AZ.
Remove intake pipe (1).
Installation note: Replace O-ring.
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Fig. 400: Identifying Intake Pipe And Screws
Release all nuts (1) using special tool 11 7 201.
Tightening torque 11 41 5 AZ.
Remove oil pump drive gear.
NOTE: Illustration shows engine removed.
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Fig. 401: Removing Nuts Using Special Tool 11 7 201
Unscrew nuts (1).
Release screws, remove oil pump (1) with aid of a second person.
Installation note: Replace screws.
Tightening torque 11 41 2AZ.
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Fig. 402: Identifying Oil Pump And Nuts
Detach oil lines (1) upwards in direction of arrow.
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Fig. 403: Detaching Oil Lines Upwards In Direction Of Arrow
Installation note: Replace sealing rings (1).
Apply light coat of oil to sealing ring (1).
Coat sealing ring (2) with suitable lubricant.
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Fig. 404: Identifying Sealing Ring
Installation note: Replace O-ring (1) for oil feed line.
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Fig. 405: Identifying O-Ring Of Oil Feed Line
Fit oil lines (1) in direction of arrow.
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Fig. 406: Fitting Oil Lines In Direction Of Arrow
Installation note: If the oil pump is renewed, the oil deflector must be converted.
Release screws (1).
Tightening torque: 11 41 6 AZ.
Modify oil deflector (2).
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Fig. 407: Identifying Oil Deflector And Screws
Fit special tool 11 8 920 on special tool 11 9 280.
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Fig. 408: Fitting Special Tool 11 8 920 On Special Tool 11 9 280
IMPORTANT: Left-hand thread on oil pump screw connection.
Do not grip oil pump drive with a pair of pliers risk of damage.
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Fig. 409: [Caution - Do Not Grip Oil Pump Drive With Pair Of Pliers Risk Of
Damage]
IMPORTANT: Nut (1) has left-hand thread.
Position special tool 11 8 920 on sprocket.
Slacken nut (1).
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Fig. 410: Positioning Special Tool 11 8 920 On Sprocket
Installation note: Check mounting flats on pump shaft (1) for damage.
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Fig. 411: Checking Mounting Flats On Pump Shaft For Damage
IMPORTANT: Nut (1) has left-hand thread.
Grip pump with assistance of a second person.
Secure nut (1) with special tool 00 9 120.
Tightening torque: 11 41 4
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Fig. 412: Securing Nut With Special Tool 00 9 120
Join and secure nuts (1).
Tightening torque 11 41 2 AZ.
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Fig. 413: Identifying Oil Pump And Nuts
Install oil pump drive gear.
Secure all nuts (1) with special tool 11 7 201.
Tightening torque 11 41 5 AZ.
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Fig. 414: Tightening Nuts Using Special Tool 11 7 201
Adjust oil pump timing chain
Pretension oil pump adjusting sleeve (1) with a hexagon socket wrench.
Adjustment value 10 mm +2.
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Fig. 415: Pretensioning Oil Pump Adjusting Sleeve With Hexagon Socket Wrench
Minimally preload timing chain (1) with special tool 51 0 342.
Read off measured value A on special tool 51 0 342 and note down.
IMPORTANT: Do not use force to preload timing chain (1).
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Fig. 416: Measuring Value A On Special Tool 51 0 342
Using a screwdriver (1), preload timing chain to minimal extent in direction of arrow.
Read off measured value B on special tool 51 0 342 and note down.
IMPORTANT: Do not use force preload timing chain.
Measured value A minus measured value B results in the adjustment value.
Adjustment value 10 mm +2.
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Fig. 417: Measuring Value B On Special Tool 51 0 342
Join and secure screw (2).
Tightening torque 11 41 2 AZ.
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Fig. 418: Identifying Oil Pump And Nuts
Assemble engine.
READ NEXT:
Removing And Installing/Replacing Roller Chain For Oil Pump Drive
(N63)
Special tools required:
11 7 201
22 13 485
Necessary preliminary tasks:
Drain engine oil.
Remove flywheel.
Remove bottom of oil sump.
NOTE: Support bush (2) is included in delivery specificat
Oil Filter And Lines
OIL RETURN COVER
IMPORTANT: Risk of fire.
In the event of oil leakage in the Vee, the leakage oil may be ignited on hot
components.
Necessary preliminary work
Remove both exhaust turbochargers.
R
Water Pump With Drive
Removing And Installing/Renewing Coolant Pump (N63)
WARNING: Risk of scalding!
Only perform this work after engine has cooled down.
Recycling
Catch and dispose of drained coolant in a suitable collect
SEE MORE:
Removing And Installing/Replacing Fuel Tank Filler Hose
Recycling
Fuel escapes when fuel lines are detached. Have a suitable collecting
container ready. Catch and dispose of
escaping fuel.
Observe country-specific waste-disposal regulations.
IMPORTANT: Ensure adequate ventilation in the place of work!
Avoid skin contact (wear gloves)!
After installatio
Electrical Components Wear Indicator
REPLACING A BRAKE PAD SENSOR (FRONT)
IMPORTANT: The brake pad wear sensor must be replaced once it has been
removed (brake
pad wear sensor loses its retention capability in the brake pad).
If an already ground brake pad wear sensor has to be replaced although the
minimum brake pad thickness has no
